> For the complete documentation index, see [llms.txt](https://docs.mixeffect.app/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.mixeffect.app/automate/osc/messages/mix-effects-bus/fade-to-black-rate.md).

# Fade to Black Rate

| Message               | Description                                                             | Arguments |
| --------------------- | ----------------------------------------------------------------------- | --------- |
| `/mixeffect/ftb/rate` | Changes the rate of the FTB transition on the selected Mix Effects Bus. | Multiple  |

| Argument | Type    | Description                                         |
| -------- | ------- | --------------------------------------------------- |
| Rate     | Integer | The number of frames from 1 to 250.                 |
| M/E      | Integer | 1-based index of the Mix Effects Bus. Default is 1. |